<?php
/**
 * PHPExcel
 *
 * Copyright (c) 2006 - 2010 PHPExcel
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * @category   PHPExcel
 * @package    PHPExcel_Style
 * @copyright  Copyright (c) 2006 - 2010 PHPExcel (http://www.codeplex.com/PHPExcel)
 * @license    http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt	LGPL
 * @version    1.7.2, 2010-01-11
 */


/** PHPExcel root directory */
if (!defined('PHPEXCEL_ROOT')) {
    /**
     * @ignore
     */
    define('PHPEXCEL_ROOT', dirname(__FILE__) . '/../../');
}

/** PHPExcel_IComparable */
require_once PHPEXCEL_ROOT . 'PHPExcel/IComparable.php';


/**
 * PHPExcel_Style_Color
 *
 * @category   PHPExcel
 * @package    PHPExcel_Style
 * @copyright  Copyright (c) 2006 - 2010 PHPExcel (http://www.codeplex.com/PHPExcel)
 */
class PHPExcel_Style_Color implements PHPExcel_IComparable
{
    /* Colors */
    const COLOR_BLACK = 'FF000000';
    const COLOR_WHITE = 'FFFFFFFF';
    const COLOR_RED = 'FFFF0000';
    const COLOR_DARKRED = 'FF800000';
    const COLOR_BLUE = 'FF0000FF';
    const COLOR_DARKBLUE = 'FF000080';
    const COLOR_GREEN = 'FF00FF00';
    const COLOR_DARKGREEN = 'FF008000';
    const COLOR_YELLOW = 'FFFFFF00';
    const COLOR_DARKYELLOW = 'FF808000';

    /**
     * Indexed colors array
     *
     * @var array
     */
    private static $_indexedColors;

    /**
     * ARGB - Alpha RGB
     *
     * @var string
     */
    private $_argb;

    /**
     * Supervisor?
     *
     * @var boolean
     */
    private $_isSupervisor;

    /**
     * Parent. Only used for supervisor
     *
     * @var mixed
     */
    private $_parent;

    /**
     * Parent property name
     *
     * @var string
     */
    private $_parentPropertyName;

    /**
     * Create a new PHPExcel_Style_Color
     *
     * @param string $pARGB
     */
    public function __construct($pARGB = PHPExcel_Style_Color::COLOR_BLACK, $isSupervisor = false)
    {
        // Supervisor?
        $this->_isSupervisor = $isSupervisor;

        // Initialise values
        $this->_argb = $pARGB;
    }

    /**
     * Bind parent. Only used for supervisor
     *
     * @param mixed $parent
     * @param string $parentPropertyName
     * @return PHPExcel_Style_Color
     */
    public function bindParent($parent, $parentPropertyName)
    {
        $this->_parent = $parent;
        $this->_parentPropertyName = $parentPropertyName;
        return $this;
    }

    /**
     * Is this a supervisor or a real style component?
     *
     * @return boolean
     */
    public function getIsSupervisor()
    {
        return $this->_isSupervisor;
    }

    /**
     * Get the shared style component for the currently active cell in currently active sheet.
     * Only used for style supervisor
     *
     * @return PHPExcel_Style_Color
     */
    public function getSharedComponent()
    {
        switch ($this->_parentPropertyName) {
            case '_endColor':
                return $this->_parent->getSharedComponent()->getEndColor();
                break;

            case '_color':
                return $this->_parent->getSharedComponent()->getColor();
                break;

            case '_startColor':
                return $this->_parent->getSharedComponent()->getStartColor();
                break;
        }
    }

    /**
     * Get the currently active sheet. Only used for supervisor
     *
     * @return PHPExcel_Worksheet
     */
    public function getActiveSheet()
    {
        return $this->_parent->getActiveSheet();
    }

    /**
     * Get the currently active cell coordinate in currently active sheet.
     * Only used for supervisor
     *
     * @return string E.g. 'A1'
     */
    public function getSelectedCells()
    {
        return $this->getActiveSheet()->getSelectedCells();
    }

    /**
     * Get the currently active cell coordinate in currently active sheet.
     * Only used for supervisor
     *
     * @return string E.g. 'A1'
     */
    public function getActiveCell()
    {
        return $this->getActiveSheet()->getActiveCell();
    }

    /**
     * Build style array from subcomponents
     *
     * @param array $array
     * @return array
     */
    public function getStyleArray($array)
    {
        switch ($this->_parentPropertyName) {
            case '_endColor':
                $key = 'endcolor';
                break;

            case '_color':
                $key = 'color';
                break;

            case '_startColor':
                $key = 'startcolor';
                break;

        }
        return $this->_parent->getStyleArray(array($key => $array));
    }

    /**
     * Apply styles from array
     *
     * <code>
     * $objPHPExcel->getActiveSheet()->getStyle('B2')->getFont()->getColor()->applyFromArray( array('rgb' => '808080') );
     * </code>
     *
     * @param    array $pStyles Array containing style information
     * @throws    Exception
     * @return PHPExcel_Style_Color
     */
    public function applyFromArray($pStyles = null)
    {
        if (is_array($pStyles)) {
            if ($this->_isSupervisor) {
                $this->getActiveSheet()->getStyle($this->getSelectedCells())->applyFromArray($this->getStyleArray($pStyles));
            } else {
                if (array_key_exists('rgb', $pStyles)) {
                    $this->setRGB($pStyles['rgb']);
                }
                if (array_key_exists('argb', $pStyles)) {
                    $this->setARGB($pStyles['argb']);
                }
            }
        } else {
            throw new Exception("Invalid style array passed.");
        }
        return $this;
    }

    /**
     * Get ARGB
     *
     * @return string
     */
    public function getARGB()
    {
        if ($this->_isSupervisor) {
            return $this->getSharedComponent()->getARGB();
        }
        return $this->_argb;
    }

    /**
     * Set ARGB
     *
     * @param string $pValue
     * @return PHPExcel_Style_Color
     */
    public function setARGB($pValue = PHPExcel_Style_Color::COLOR_BLACK)
    {
        if ($pValue == '') {
            $pValue = PHPExcel_Style_Color::COLOR_BLACK;
        }
        if ($this->_isSupervisor) {
            $styleArray = $this->getStyleArray(array('argb' => $pValue));
            $this->getActiveSheet()->getStyle($this->getSelectedCells())->applyFromArray($styleArray);
        } else {
            $this->_argb = $pValue;
        }
        return $this;
    }

    /**
     * Get RGB
     *
     * @return string
     */
    public function getRGB()
    {
        if ($this->_isSupervisor) {
            return $this->getSharedComponent()->getRGB();
        }
        return substr($this->_argb, 2);
    }

    /**
     * Set RGB
     *
     * @param string $pValue
     * @return PHPExcel_Style_Color
     */
    public function setRGB($pValue = '000000')
    {
        if ($pValue == '') {
            $pValue = '000000';
        }
        if ($this->_isSupervisor) {
            $styleArray = $this->getStyleArray(array('argb' => 'FF' . $pValue));
            $this->getActiveSheet()->getStyle($this->getSelectedCells())->applyFromArray($styleArray);
        } else {
            $this->_argb = 'FF' . $pValue;
        }
        return $this;
    }

    /**
     * Get indexed color
     *
     * @param    int $pIndex
     * @return    PHPExcel_Style_Color
     */
    public static function indexedColor($pIndex)
    {
        // Clean parameter
        $pIndex = intval($pIndex);

        // Indexed colors
        if (is_null(self::$_indexedColors)) {
            self::$_indexedColors = array();
            self::$_indexedColors[] = '00000000';
            self::$_indexedColors[] = '00FFFFFF';
            self::$_indexedColors[] = '00FF0000';
            self::$_indexedColors[] = '0000FF00';
            self::$_indexedColors[] = '000000FF';
            self::$_indexedColors[] = '00FFFF00';
            self::$_indexedColors[] = '00FF00FF';
            self::$_indexedColors[] = '0000FFFF';
            self::$_indexedColors[] = '00000000';
            self::$_indexedColors[] = '00FFFFFF';
            self::$_indexedColors[] = '00FF0000';
            self::$_indexedColors[] = '0000FF00';
            self::$_indexedColors[] = '000000FF';
            self::$_indexedColors[] = '00FFFF00';
            self::$_indexedColors[] = '00FF00FF';
            self::$_indexedColors[] = '0000FFFF';
            self::$_indexedColors[] = '00800000';
            self::$_indexedColors[] = '00008000';
            self::$_indexedColors[] = '00000080';
            self::$_indexedColors[] = '00808000';
            self::$_indexedColors[] = '00800080';
            self::$_indexedColors[] = '00008080';
            self::$_indexedColors[] = '00C0C0C0';
            self::$_indexedColors[] = '00808080';
            self::$_indexedColors[] = '009999FF';
            self::$_indexedColors[] = '00993366';
            self::$_indexedColors[] = '00FFFFCC';
            self::$_indexedColors[] = '00CCFFFF';
            self::$_indexedColors[] = '00660066';
            self::$_indexedColors[] = '00FF8080';
            self::$_indexedColors[] = '000066CC';
            self::$_indexedColors[] = '00CCCCFF';
            self::$_indexedColors[] = '00000080';
            self::$_indexedColors[] = '00FF00FF';
            self::$_indexedColors[] = '00FFFF00';
            self::$_indexedColors[] = '0000FFFF';
            self::$_indexedColors[] = '00800080';
            self::$_indexedColors[] = '00800000';
            self::$_indexedColors[] = '00008080';
            self::$_indexedColors[] = '000000FF';
            self::$_indexedColors[] = '0000CCFF';
            self::$_indexedColors[] = '00CCFFFF';
            self::$_indexedColors[] = '00CCFFCC';
            self::$_indexedColors[] = '00FFFF99';
            self::$_indexedColors[] = '0099CCFF';
            self::$_indexedColors[] = '00FF99CC';
            self::$_indexedColors[] = '00CC99FF';
            self::$_indexedColors[] = '00FFCC99';
            self::$_indexedColors[] = '003366FF';
            self::$_indexedColors[] = '0033CCCC';
            self::$_indexedColors[] = '0099CC00';
            self::$_indexedColors[] = '00FFCC00';
            self::$_indexedColors[] = '00FF9900';
            self::$_indexedColors[] = '00FF6600';
            self::$_indexedColors[] = '00666699';
            self::$_indexedColors[] = '00969696';
            self::$_indexedColors[] = '00003366';
            self::$_indexedColors[] = '00339966';
            self::$_indexedColors[] = '00003300';
            self::$_indexedColors[] = '00333300';
            self::$_indexedColors[] = '00993300';
            self::$_indexedColors[] = '00993366';
            self::$_indexedColors[] = '00333399';
            self::$_indexedColors[] = '00333333';
        }

        if (array_key_exists($pIndex, self::$_indexedColors)) {
            return new PHPExcel_Style_Color(self::$_indexedColors[$pIndex]);
        }

        return new PHPExcel_Style_Color();
    }

    /**
     * Get hash code
     *
     * @return string    Hash code
     */
    public function getHashCode()
    {
        if ($this->_isSupervisor) {
            return $this->getSharedComponent()->getHashCode();
        }
        return md5(
            $this->_argb
            . __CLASS__
        );
    }

    /**
     * Implement PHP __clone to create a deep clone, not just a shallow copy.
     */
    public function __clone()
    {
        $vars = get_object_vars($this);
        foreach ($vars as $key => $value) {
            if (is_object($value)) {
                $this->$key = clone $value;
            } else {
                $this->$key = $value;
            }
        }
    }
}
